[HezaaChan]

I haven't read many, mainly because I'm too lazy to go through mangas with a large number of chapters, unless I really really like the story.

1. Majin Tantei Nougami Neuro (Completed the whole of this, <3 it :P)
2. Natsume Yuunjichou (Made me cry too much :S)
3. Hellsing (Not for those who prefer substance over violence, at least, I think so)

That's about all the good series I can remember :P